Finding the Fourth Proportional to 2,498.90, 3,448.58 and 1,379.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,498.90 : 3,448.58 = 1,379.79 : x
2. Step 2: Convert to fraction form
   2,498.90/3,448.58 = 1,379.79/x
3. Step 3: Cross multiply
   2,498.90x = 3,448.58 × 1,379.79
4. Step 4: Simplify right side
   2,498.90x = 4,758,309.30
5. Step 5: Solve for x
   x = 4,758,309.30/2,498.90
6. Step 6: Final answer
   x = 1,904.17